Heap-based Out-of-Bounds Write in OpenSSL Products by OpenSSL

CVE-2025-68160

What is CVE-2025-68160?

A vulnerability has been identified in OpenSSL where writing large, newline-free data into a BIO chain can lead to a heap-based out-of-bounds write. This memory corruption can cause an application to crash, resulting in a Denial of Service. Although this issue typically affects third-party applications that utilize the line-buffering BIO filter under specific circumstances, it is not standard practice within TLS/SSL data paths. The potential for exploitation is considered low, limiting the contexts in which attackers could leverage this vulnerability.

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